ProMaxx Performance Cummins Diesel Cylinder Heads

Brand New Replacement Diesel Cylinder Heads

ProMaxx Performance has the answer for the epidemic of cracked cylinder heads for Cummins 4BT, 6BT, 5.9L, and 6.7 engines. Developed and designed after an OE casting for direct bolt-on replacement, ProMaxx improved on casting strength and thickness in all the crack-prone areas for durability. ProMaxx diesel heads for Cummins are available as fully machined bare casting or fully assembled.